SOLUTION: The combined age of the Weismillers' two automobiles is 12 years. Three years ago, Mrs. Weismiller's automobile was double the age of Mr. Weismiller's automobile.How old are Mr. a

Algebra ->  Algebra  -> Human-and-algebraic-language -> SOLUTION: The combined age of the Weismillers' two automobiles is 12 years. Three years ago, Mrs. Weismiller's automobile was double the age of Mr. Weismiller's automobile.How old are Mr. a      Log On

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Question 238858: The combined age of the Weismillers' two automobiles is 12 years.
Three years ago, Mrs. Weismiller's automobile was double the age of Mr. Weismiller's automobile.How old are Mr. and Mrs. Weismiller's automobiles now?
Answer by josmiceli(6797) About Me  (Show Source):
You can put this solution on YOUR website!
Age of her car now = a
Age of his car now = b
Age of her car 3 years ago = a+-+3
Age of his car 3 years ago = b+-+3
given:
(1) a+%2B+b+=+12
(2) a+-+3+=+2%2A%28b+-+3%29
---------------
from (12),
a+=+12+-+b
from (2),
(2) 12+-+b+-+3+=+2b+-+6
3b+=+15
b+=+5
and
a+=+12+-+b
a+=+12+-+5
a+=+7
Her car is 7 years old and his car is 5 years old